View methods side by side.
Choose up to four methods. Add them using the search and share the comparison by copying its link.
| Criterion |  Operations Gemba Walk |  Operations Causal Factor Analysis |  Operations A3 Problem Solving |  Operations 8D Problem Solving |
|---|---|---|---|---|
Purposedifferent | When there is uncertainty about the real course of a process, the method brings observation to the place where work happens. It combines perception, follow-up questions, and process knowledge so decisions rest on actual workflows instead of assumptions. | For an event with a complicated course, the method breaks down the contributing factors along the timeline. It shows how conditions, decisions, and reactions together produce a course of events. | For a complex deviation with several people involved, the method bundles problem, analysis, and decision onto one page. It creates a shared working space where causes, countermeasures, and follow-up fit together. | For an acute quality or delivery problem, the method structures immediate protection and root cause work together. It keeps the situation stable while the actual cause is investigated cleanly. |
Complexitydifferent | Low | High | Medium | High |
Timedifferent | 30-120 min | 2-6 h | 45-90 min | 1-6 Wochen |
Participantsdifferent | 2-6 | 3-10 | 2-5 | 4-10 |
Formatdifferent | Workshop | Workshop + async | Workshop + async | Workshop + async |
Outputdifferent | Observation Notes, Improvement Ideas | Event Timeline, Causal Factor Chart, Cause List, Corrective Actions | A3 Report, Action Plan, Root Cause Analysis | 8D Report, Containment Plan, Root Cause Evidence, Corrective Action Plan |
Tagsno overlap | LeanObservationProcessOperations | CausalityIncidentRoot causeTimeline | LeanProblem solvingCoachingOperations | QualityProblem solvingRoot cause |